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PartsTable / COMPONENT / U250-0145
U250-0145 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.275 INCHES NOMINAL IN, overall_height: 0.045 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN, outside_diameter: 0.541 INCHES NOMINAL IN, special_features: MADE OF SPRING STEEL;OVAL SHAPED, surface_treatment: CADMIUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-141-2887, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
U250-0145
NSN: 5310-01-141-2887
FSC: 5310
CAGE: 56048 — ASSOCIATED SPRING CORP DIV OF THE BARNES GROUP INC DALLAS DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.275 INCHES NOMINAL IN
overall_height0.045 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
outside_diameter0.541 INCHES NOMINAL IN
special_featuresMADE OF SPRING STEEL;OVAL SHAPED
surface_treatmentCADMIUM OVERALL
material_thickness0.013 INCHES MINIMUM AND 0.015 INCHES MAXIMUM IN
NSN5310-01-141-2887
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: U250-0145 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL THICKNESS: 0.013 INCHES MINIMUM AND 0.015 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.541 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.275 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
MATERIAL THICKNESS0.013 INCHES MINIMUM AND 0.015 INCHES MAXIMUM IN
SPECIAL FEATURESMADE OF SPRING STEEL;OVAL SHAPED
OUTSIDE DIAMETER0.541 INCHES NOMINAL IN
HOLE DIAMETER0.275 INCHES NOMINAL IN
OVERALL HEIGHT0.045 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
NF-HR-5#0Interchangeable
interchangeable cross-reference
interchangeable
37444Interchangeable
interchangeable cross-reference
interchangeable
262-130Interchangeable
interchangeable cross-reference
interchangeable
TE15183-500-2Interchangeable
interchangeable cross-reference
interchangeable
31519Interchangeable
interchangeable cross-reference
interchangeable
50958Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is U250-0145?
U250-0145 is a WASHER,SPRING TENSION.
What parts can replace U250-0145?
There are 6 known substitutes for U250-0145: NF-HR-5#0, 37444, 262-130 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for U250-0145?
U250-0145 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-141-2887. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026